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Aa lava is the type of lava that forms a thick, brittle crust.
Wiki User
∙ 10y ago
Wiki User
∙ 14y agothe correct answer would be Aa
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Lava that is low in silica tends to?
Lava that is low in silica tends to have lighter rocks come out of it.
What is the importance of a silica and oxygen in lava flow speed?
Silica will determine if the lava is hot and runny or thick and slow!
What are the four types of lava that form at hot spots and their characteristics?
Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that forms a thin crust. Pillow lava forms when lava erupts underwater. Blocky lava is kool, stiff lava that does not travel far from thr eruption site.
What is the relationship with silica viscosity and lava flow?
An increase in the silica content of a lava increases it's viscosity. Viscosity can be thought of as a fluids resistance during deformation to shear or tensile stress, or in more simple terms, how easy or difficult it is to make a fluid flow. As viscosity increases, a fluid will flow less easily, so a lava with a high silica content will be more viscous and will flow less easily / more slowly than a low silica lava.
What forms when the lava ejected is too thick to flow?
Lava cools to become a crust of stone with many small air bubbles, often called lavarock
This type of lava is thick stiff and does not flow easily.?
Aa
How many types of lava flow?
2. Thick or runny lava. Thick flows slowly, runny flows faster.
Lava that is low in silica tends to?
Lava that is low in silica tends to have lighter rocks come out of it.
What is the importance of a silica and oxygen in lava flow speed?
Silica will determine if the lava is hot and runny or thick and slow!
What are the four types of lava that form at hot spots and their characteristics?
Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that forms a thin crust. Pillow lava forms when lava erupts underwater. Blocky lava is kool, stiff lava that does not travel far from thr eruption site.
What causes lava to flow easily?
the shelter of surrounding rock, allowing it to stretch out its particles
What is the relationship with silica viscosity and lava flow?
An increase in the silica content of a lava increases it's viscosity. Viscosity can be thought of as a fluids resistance during deformation to shear or tensile stress, or in more simple terms, how easy or difficult it is to make a fluid flow. As viscosity increases, a fluid will flow less easily, so a lava with a high silica content will be more viscous and will flow less easily / more slowly than a low silica lava.
What forms when the lava ejected is too thick to flow?
Lava cools to become a crust of stone with many small air bubbles, often called lavarock
How far does lava travel?
There are a lot of variables. One must consider the viscosity--the resistance to flow-- of the lava, the terrain that it is flowing upon, and the rate at which magma is discharged from the volcano itself. The longest recorded lava-flow in Hawaii was the eruption of Mauna Loa in 1859. It was 51 kilometers long-- and probably longer, but scientists are unsure because the lava flow went under water. Another instance is in Queensland, Australia, where a lava flow went for nearly 100 miles!
What is the density independent of lava flow?
the lava flow is a density independent that flow good from the chemicals lava it have to flow and it is independent
Is there a difference between lava and lava flow?
Lava is molten rock at earth's surface, whether it is in a lava flow, a lava pool, or a lava dome. A lava flow is lava that is actively flowing downhill.
Is lava harmful?
Yes. Deaths from lava are fairly rare because lava usually flows slowly, but people have burned to death from it. Even when it doesn't kill, a lava flow can easily destroy people's homes.
